import "@tiptap/extension-text-style"

import { Extension } from "@tiptap/core"

export type ColorOptions = {
  /**
   * The types where the color can be applied
   * @default ['textStyle']
   * @example ['heading', 'paragraph']
   */
  types: string[]
}

declare module "@tiptap/core" {
  interface Commands<ReturnType> {
    color: {
      /**
       * Set the text color
       * @param color The color to set
       * @example editor.commands.setColor('red')
       */
      setColor: (color: string) => ReturnType

      /**
       * Unset the text color
       * @example editor.commands.unsetColor()
       */
      unsetColor: () => ReturnType
    }
  }
}

/**
 * This extension allows you to color your text.
 * @see https://tiptap.dev/api/extensions/color
 */
export const Color = Extension.create<ColorOptions>({
  name: "color",

  addOptions() {
    return {
      types: ["textStyle"],
    }
  },

  addGlobalAttributes() {
    return [
      {
        types: this.options.types,
        attributes: {
          color: {
            default: null,
            parseHTML: (element) => element.style.color?.replace(/['"]+/g, ""),
            renderHTML: (attributes) => {
              if (!attributes.color) {
                return {}
              }

              return {
                style: `color: ${attributes.color}`,
              }
            },
          },
        },
      },
    ]
  },

  addCommands() {
    return {
      setColor:
        (color) =>
        ({ chain }) => {
          return chain().setMark("textStyle", { color }).run()
        },
      unsetColor:
        () =>
        ({ chain }) => {
          return chain()
            .setMark("textStyle", { color: null })
            .removeEmptyTextStyle()
            .run()
        },
    }
  },
})
